www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

 
  .contact us |.about us

Highlights ... ...
Search:
    Advertisement
Expert envisions improvements on China's carrier rockets
( 2003-10-15 19:03) (Xinhua)

Standardization, modulation and integration would feature future developments of China's carrier rockets, a Chinese rocket expert told Xinhua today. China will focus efforts on research and large-scale production of basic types of rockets that could be combined and improved according to different requirements of each launch, said Liu Zhusheng, chief designer of the rocket system of China's manned space flight program, comparing the mechanism to building blocks that can be combined into different shapes.

According to Liu, China's rocket production is conducted on the single piece basis at present as only two launches are made at most each year. In line with quality requirements, one of the rockets would be singled out to pass quality check.

"Such small lot production would inevitably lead to waste," said Liu.

On the improvement of propellant agents, Liu said that non- toxic propellant agents will replace current propellant agents which are poisonous, requiring a lot of pollution control measures.

"The current satellite launch service market is in excessive supply," said Liu. "In order to compete with the United States, the European Space Agency, Russia, Ukraine and India, it is necessary for us to look ahead and outpace the competition rivals in the study of technology and functions."

China has 12 models of rockets in four major series. To date, the "Long March" series of rockets have successfully sent 52 home- made satellites, 27 foreign-made satellites and five "Shenzhou" spaceships into space.

   
Close  
  Go to Another Section  
     
 
 
     
  Article Tools  
     
  E-Mail This Article
Print Friendly Format
 
     
   
        .contact us |.about us
  Copyright By chinadaily.com.cn. All rights reserved  
主站蜘蛛池模板: 国内高清自拍 | 国产精品观看在线亚洲人成网 | 亚洲第一成人天堂第一 | 性欧美美国级毛片 | 日韩手机看片福利精品 | 国产性tv国产精品 | 经典香港一级a毛片免费看 精品400部自拍视频在线播放 | 国产男女 爽爽爽爽视频 | 三级精品 | 72种姿势欧美久久久久大黄蕉 | 美女黄网站人色视频免费国产 | 国内精品成人女用 | 国产成人一区二区三区在线视频 | 91久色视频| 97国产免费全部免费观看 | 黄色网址进入 | 日本a级毛片视频播放 | 男女视频在线观看 | 久久小视频| 日本激情视频在线观看 | 二级毛片在线播放 | 国产激爽大片在线播放 | 欧美一级一极性活片免费观看 | 欧美三级美国一级 | 日本免费毛片在线高清看 | 美女黄色在线网站大全 | 日韩精品亚洲专区在线观看 | 国产成人经典三级在线观看 | 国产免费高清福利拍拍拍 | 自拍三级| 99国产精品久久久久久久... | 一级欧美一级日韩 | 欧美精品亚洲一区二区在线播放 | 一区二区中文字幕在线观看 | 久久精品一区二区免费看 | 欧美一级大片免费观看 | 成人a在线观看 | 99久久精品免费看国产一区二区三区 | 欧美国产成人一区二区三区 | 午夜国产视频 | 久久精品免费一区二区三区 |